Symbol:
H Atomic weight:
1.0079 Type:
Non-metal Atomic volume:
14.4 cm3/mol[1] Discovered
The first recorded instance of hydrogen made by human action was in the first half of the 1500s. Density:
293 K: 0.0000899 g/cm3 Harmful effects:
Hydrogen is highly flammable and has an almost invisible flame, which can lead to accidental burns Reaction with air:
vigorous, ⇒ H2O Reaction with 15 m HNO3:
none Thermal conductivity:
0.1805 W m-1 K-1
- Used in rocket fuel
- used for hydrogenation of oils to make fat
- used in vehicle fuel
- ammonia
Symbol:H
Atomic weight:
1.0079
Type:
Non-metal
Atomic volume:
14.4 cm3/mol[1]
Discovered
The first recorded instance of hydrogen made by human action was in the first half of the 1500s.
Density:
293 K: 0.0000899 g/cm3
Harmful effects:
Hydrogen is highly flammable and has an almost invisible flame, which can lead to accidental burns
Reaction with air:
vigorous, ⇒ H2O
Reaction with 15 m HNO3:
none
Thermal conductivity:
0.1805 W m-1 K-1